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CN1146236C - 可进行部分视听的限定接收系统 - Google Patents

可进行部分视听的限定接收系统 Download PDF

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Publication number
CN1146236C
CN1146236C CNB001263102A CN00126310A CN1146236C CN 1146236 C CN1146236 C CN 1146236C CN B001263102 A CNB001263102 A CN B001263102A CN 00126310 A CN00126310 A CN 00126310A CN 1146236 C CN1146236 C CN 1146236C
Authority
CN
China
Prior art keywords
information
audiovisual
decryption device
programme
key
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB001263102A
Other languages
English (en)
Chinese (zh)
Other versions
CN1323142A (zh
Inventor
v
塚原大辅
秋田康贵
冈进
村上笃道
松田幸成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of CN1323142A publication Critical patent/CN1323142A/zh
Application granted granted Critical
Publication of CN1146236C publication Critical patent/CN1146236C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/26606—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel for generating or managing entitlement messages, e.g. Entitlement Control Message [ECM] or Entitlement Management Message [EMM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption
    • H04N21/44055—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption by partially decrypting, e.g. decrypting a video stream that has been partially encrypted
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4623—Processing of entitlement messages, e.g. ECM [Entitlement Control Message] or EMM [Entitlement Management Message]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • H04N7/163—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing by receiver means only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
CNB001263102A 1999-12-21 2000-08-30 可进行部分视听的限定接收系统 Expired - Fee Related CN1146236C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP363297/1999 1999-12-21
JP36329799A JP2001177814A (ja) 1999-12-21 1999-12-21 限定受信システム

Publications (2)

Publication Number Publication Date
CN1323142A CN1323142A (zh) 2001-11-21
CN1146236C true CN1146236C (zh) 2004-04-14

Family

ID=18478986

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB001263102A Expired - Fee Related CN1146236C (zh) 1999-12-21 2000-08-30 可进行部分视听的限定接收系统

Country Status (5)

Country Link
US (1) US6920222B1 (ja)
JP (1) JP2001177814A (ja)
CN (1) CN1146236C (ja)
FR (1) FR2802755B1 (ja)
GB (1) GB2357651B (ja)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0026339D0 (en) * 2000-10-27 2000-12-13 British Telecomm Asset delivery system
EP1215905B2 (en) * 2000-12-15 2010-04-21 Panasonic Corporation Reception apparatus having a storage unit for recording a scrambled broadcast signal and broadcast apparatus for scrambling a signal to be broadcast, and associated methods
EP1304881A1 (de) * 2001-10-15 2003-04-23 Beta Research GmbH Verfahren und Vorrichtung zum Bereitstellen von Daten
FR2831360B1 (fr) * 2001-10-19 2004-02-06 Viaccess Sa Protocole interactif de gestion a distance du controle d'acces a des informations embrouillees
US20030200548A1 (en) * 2001-12-27 2003-10-23 Paul Baran Method and apparatus for viewer control of digital TV program start time
US7792978B2 (en) * 2001-12-28 2010-09-07 At&T Intellectual Property I, L.P. System and method to remotely manage and audit set top box resources
EP1510066A1 (en) * 2002-05-21 2005-03-02 Koninklijke Philips Electronics N.V. Conditional access system
US7315622B2 (en) * 2002-06-27 2008-01-01 Nxp B.V. Robust method for achieving audio/video synchronization in MPEG decoders in personal video recording applications
EP1618478A4 (en) 2003-03-13 2007-10-03 Drm Technologies L L C CONTINUOUSLY CONTINUOUS CONTAINER
KR20050055547A (ko) * 2003-12-08 2005-06-13 삼성전자주식회사 복사 제어 정보를 이용한 암호화된 데이터의 복호화 방법및 그 장치와, 이를 구현하기 위한 프로그램이 기록된컴퓨터로 읽을 수 있는 기록 매체
CN1713570A (zh) * 2004-06-14 2005-12-28 松下电器产业株式会社 先授权后认证的服务方法及其装置
JP4690696B2 (ja) * 2004-10-29 2011-06-01 株式会社東芝 デジタル放送受信装置および方法
JP4684701B2 (ja) * 2004-11-24 2011-05-18 三菱電機株式会社 スクランブル処理装置、デスクランブル処理装置、スクランブル処理方法及びデスクランブル処理方法
US9026804B2 (en) * 2006-02-24 2015-05-05 Qualcomm Incorporated Methods and apparatus for protected distribution of applications and media content
CN101132408B (zh) * 2007-08-16 2010-07-21 华为技术有限公司 流媒体内容的处理方法、设备及系统
GB0915596D0 (en) * 2009-09-07 2009-10-07 St Microelectronics Res & Dev Encryption keys
US20140130182A1 (en) * 2012-11-02 2014-05-08 Genesismedia Llc Controlled Grant Of Access To Media Content
US11606528B2 (en) 2018-01-03 2023-03-14 Saturn Licensing Llc Advanced television systems committee (ATSC) 3.0 latency-free display of content attribute
US11044294B2 (en) 2018-01-03 2021-06-22 Sony Group Corporation ATSC 3.0 playback using MPEG media transport protocol (MMTP)
US10743069B2 (en) * 2018-12-10 2020-08-11 Sony Corporation Delivery of information related to digital rights management (DRM) in a terrestrial broadcast system
US11706465B2 (en) 2019-01-15 2023-07-18 Sony Group Corporation ATSC 3.0 advertising notification using event streams

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5311325A (en) 1992-06-10 1994-05-10 Scientific Atlanta, Inc. Method and apparatus for providing periodic subscription television services
FR2700092B1 (fr) 1992-12-29 1995-02-03 France Telecom Procédé de diffusion de programmes à accès conditionnel permettant un accès progressif et procédé d'accès progressif à de tels programmes.
JPH07131454A (ja) 1993-11-05 1995-05-19 Toshiba Corp 中継装置，復号装置及び秘匿放送装置
FR2718594B1 (fr) 1994-04-06 1996-04-26 France Telecom Procédé de diffusion de programmes à accès conditionnel progressif et à séparation du flux d'information.
US5594794A (en) 1994-10-18 1997-01-14 General Instrument Corporation Of Delaware Method and apparatus for free previews of communication network services
GB2297017A (en) 1995-01-11 1996-07-17 Farncombe Technology Ltd Encryption of television services
US6157719A (en) * 1995-04-03 2000-12-05 Scientific-Atlanta, Inc. Conditional access system
ATE345645T1 (de) * 1997-03-21 2006-12-15 Canal Plus Technologies Rundfunk- und empfangssystem und bedingtes zugangssystem dafür
EP1013091B1 (en) 1997-08-01 2002-09-18 Scientific-Atlanta, Inc. Source authentication of download information in a conditional access system

Also Published As

Publication number Publication date
GB2357651A (en) 2001-06-27
GB0021054D0 (en) 2000-10-11
CN1323142A (zh) 2001-11-21
US6920222B1 (en) 2005-07-19
FR2802755B1 (fr) 2003-01-03
FR2802755A1 (fr) 2001-06-22
GB2357651B (en) 2002-07-17
JP2001177814A (ja) 2001-06-29

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SE01 Entry into force of request for substantive examination
C06 Publication
PB01 Publication
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee